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RIVERBETA · pocket sheet

Canadian Border to Polebridge

North Fork Flathead · I-II · 24 mi · June–August
NO851 cfs
steady over 24h · water 57°F
prime 1,500–7,000 cfs
sunset 8:20 PM

Mile by mile

  • 1Upper Kintla RapidsII · RM 48.56 — Class II at mile 9.14 — the headline feature of the upper sub-segment. AW lists it as both an access waypoint and the named rapid for this reach.

Emergency

  • Emergencies. Dial 911. Cell coverage is limited throughout the corridor — plan to be self-reliant between accesses.
  • Primary rescue. North Valley Search & Rescue covers all three forks of the Flathead.
  • Nearest hospitals. Logan Health Whitefish and Logan Health Medical Center (Kalispell) are the primary regional facilities; serious trauma is flown to Kalispell or Missoula.
Field notes
Canadian Border to Polebridge river map
P Canadian BorderT Polebridgeshuttle 21.8 mi · ≈60 min
Last 7 days · USGS 12355500932860765906TUETHUSATTUE

USGS 12355500 · Conditions as of Sep 1, 2026, 1:45 AM · Partly Sunny, 85°F. Printed Sep 1, 2026, 2:37 AM— levels swing, wood moves. Verify the gauge and scout anything you can't read from upstream.